Patents by Inventor Takamasa Yamada

Takamasa Yamada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170343736
    Abstract: In a woven fabric woven from first constituent yarns as one of warps and wefts and second constituent yarns as the other, a part of the first constituent yarns are side emission type optical fibers; at least a part of the second constituent yarns are light shielding yarns; the woven fabric has a light shielding structure which shields light emission on a design surface side of the side emission type optical fiber; the light shielding structure includes a first group of light shielding yarns and a second group of light shielding yarns each formed of the 2 to 4 continuous light shielding yarns intersecting the side emission type optical fiber on the design surface side; the one light shielding yarn arranged between the first group of light shielding yarns and the second group of light shielding yarns and intersecting the side emission type optical fiber on a non-design surface side.
    Type: Application
    Filed: May 19, 2017
    Publication date: November 30, 2017
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, DAIKI CO., LTD.
    Inventors: Takamasa YAMADA, Atsuhiko ITO, Takayoshi YAMAMOTO
  • Publication number: 20170342607
    Abstract: A woven fabric includes a first constituent yarn having an optical fiber yarn and a non-light guiding yarn and a second constituent yarn having a non-light guiding yarn. The woven fabric has a first region in which the first and second constituent yarns are woven in one layer and a second region which is positioned adjacent to the first region and in which the first and second constituent yarns and are woven in two or more separable layers. The woven fabric has an optical fiber layer and a back protecting layer as the separable layers. The optical fiber layer is a layer formed of the optical fiber yarns. The back protecting layer is a layer in which the non-light guiding yarn of the first constituent yarn and the non-light guiding yarn of the second constituent yarn are woven. Further, the woven fabric can further comprise a front protecting layer.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 30, 2017
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, DAIKI CO., LTD.
    Inventors: Takamasa YAMADA, Shingo OKAHARA, Mitsutaka SAKOH, Hideo KANAMORI, Atsuhiko ITO, Takayoshi YAMAMOTO
  • Publication number: 20170297484
    Abstract: A skin material for vehicle interior includes a woven fabric woven by using a side emission type optical fiber and a multifilament as warp or weft, and is joined to a substrate for vehicle interior to constitute a vehicle interior material. In a surface of the woven fabric which constitutes the inside of a vehicle compartment, a virtual surface constituted by connecting side surfaces, on the inside of the vehicle compartment, of the side emission type optical fibers is in close vicinity to the substrate for vehicle interior, as compared with a virtual surface constituted by connecting side surfaces, on the inside of the vehicle compartment, of the multifilaments. Examples of the vehicle interior material in which the skin material for vehicle interior is used include door trims and roof trims.
    Type: Application
    Filed: March 22, 2017
    Publication date: October 19, 2017
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, DAIKI CO., LTD.
    Inventors: Takamasa YAMADA, Seiji CHAZA, Shingo OKAHARA, Mitsutaka SAKOH, Hideo KANAMORI, Atsuhiko ITO, Takayoshi YAMAMOTO
  • Publication number: 20170261670
    Abstract: An illumination apparatus includes a woven fabric in which optical fibers are woven as a constituent yarn and a light source. The illumination apparatus makes light delivered from the light source incident upon the end surfaces on one end side of the optical fibers and emits the light at least from the end surfaces on the other end side of the optical fibers for illumination. The other end side of the optical fibers is exposed from the woven fabric to constitute exposed parts, and the end parts of a plurality of the exposed parts on the other end side are supported by an end part support to form emitting parts which emit light from the light source. On the end part support, the end parts of the exposed parts on the other end side are individually supported such that their respective end surfaces are aligned on the same plane.
    Type: Application
    Filed: February 28, 2017
    Publication date: September 14, 2017
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Takamasa YAMADA, Seiji CHAZA, Shingo OKAHARA, Mitsutaka SAKOH, Hideo KANAMORI, Atsuhiko ITO
  • Patent number: 5532107
    Abstract: Disclosed herein is a positive resist composition comprising an alkali-soluble phenolic resin and a photosensitive agent, characterized in that the positive resist composition contains, as the photosensitive agent, the quinonediazide sulfonate of at least one of phenolic compounds represented by the following general formulae (I) and (II): ##STR1## wherein R.sub.1 through R.sub.4 mean individually a hydrogen or halogen atom, a hydroxyl group, an alkyl or alkenyl group having 1-3 carbon atoms, or a hydroxyalkyl group having 1-3 carbon atoms and may be equal to or different from one another, and R.sub.5 denotes a hydrogen atom, an alkyl or alkenyl group having 1-3 carbon atoms, or an aryl group with the proviso that the number of hydroxyl groups is 3 or 4; and ##STR2## wherein R.sub.6 through R.sub.9 mean individually a hydrogen or halogen atom, an alkyl or alkenyl group having 1-3 carbon atoms, or a hydroxyalkyl group having 1-3 carbon atoms and may be equal to or different from one another, and R.sub.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: July 2, 1996
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Masayuki Oie, Shoji Kawata, Takamasa Yamada, Shinya Ikeda
  • Patent number: 5306596
    Abstract: Disclosed herein is a positive resist composition comprising an alkali-soluble phenolic resin and a photosensitive agent, characterized in that the positive resist composition contains, as the photosensitive agent, the quinonediazide sulfonate of at least one of phenolic compounds represented by the following general formulae (I) and (II): ##STR1## wherein R.sub.1 through R.sub.4 mean individually a hydrogen or halogen atom, a hyaroxyl group, an alkyl or alkenyl group having 1-3 carbon atoms, or a hydroxyalkyl group having 1-3 carbon atoms and may be equal to or different from one another, and R.sub.5 denotes a hydrogen atom, an alkyl or alkenyl group having 1-3 carbon atoms, or an aryl group with the proviso that the number of hydroxyl groups is 3 or 4; and ##STR2## wherein R.sub.6 through R.sub.9 mean individually a hydrogen or halogen atom, an alkyl or alkenyl group having 1-3 carbon atoms, or a hydroxyalkyl group having 1-3 carbon atoms and may be equal to or different from one another, and R.sub.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: April 26, 1994
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Masayuki Oie, Shoji Kawata, Takamasa Yamada, Shinya Ikeda
  • Patent number: 5166033
    Abstract: Disclosed herein is a positive resist composition comprising an alkali-soluble phenolic resin and the quinonediazide sulfonate of at least one phenolic compound selected from vinylphenol compounds and isopropenylphenol compounds as a photosensitive agent. It is suitable for use in minute processing.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: November 24, 1992
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Masayuki Oie, Shoji Kawata, Takamasa Yamada
  • Patent number: 5112719
    Abstract: Disclosed herein is a positive resist composition comprising an alkali-soluble phenolic resin, a photosensitive agent formed of a quinonediazide sulfonic acid ester and at least one compound represented by the following general formula (I): ##STR1## wherein R.sup.1 through R.sup.6 mean individually a hydrogen or halogen atom, a hydroxyl group or an alkyl or alkenyl group having 1-4 carbon atoms and may be equal to or different from one another,R.sup.7 and R.sup.8 denote individually a hydrogen or halogen atom, or an alkyl group having 1-4 carbon atoms and may be equal to or different from each other, andR.sup.9 through R.sup.11 stand individually for a hydrogen atom or an alkyl group having 1-4 carbon atoms and may be equal to or different from one another. It is suitable for use in minute processing.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: May 12, 1992
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Takamasa Yamada, Shoji Kawata, Masayuki Oie